What is the correct pronunciation of TeX and LaTeX? Let the creators of TeX and LaTeX answer: Donald Knuth wrote in the first chapter of his TeXbook: English words like ‘technology’ stem from a Greek root beginning with the letters τεχ ; and this same Greek word means art as well as technology Hence the name TeX, which is an uppercase form of τεχ Insiders pronounce the χ of TeX as a Greek chi, not as an ‘x’, so that TeX